Hyundai Grandeur (2002 – 2004) – fuse box diagram
Year of production: 2002, 2003, 2004
Under hood fuse box
| Description | Ampere rating [A] | Protected component | |
| 1 | FUEL PUMP | 20 | Fuel pump relay |
| 2 | HEAD LIGHT(Lo-LH) | 15 | Head light relay (Low-LH) |
| 3 | ABS | 10 | ABS controls, Cruise control module, ETS control module |
| 4 | INJECTOR | 10 | Limp home valve, ETS controls, Injector |
| 5 | A/C COMPRESSOR | 10 | A/C relay |
| 6 | A/T | 20 | A/T control relay, TCM, Engine control relay |
| 7 | MAIN | 30 | MFI controls |
| 8 | IGNITION COIL | 20 | Ignition coil, A/T pulse generator, ECM, Ignition failure sensor, E/TCM |
| 9 | OXYGEN SENSOR | 15 | ETS relay, MFI controls |
| 10 | EGR | 15 | A/C relay, MFI controls, EGR solenoid |
| 11 | HORN | 10 | Horn relay |
| 12 | HEAD LIGHT(HI) | 15 | Head light relay (High) |
| 15 | HEAD LIGHT(Lo-RH) | 20 | HID head light relay |
| 13 | DRL | 15 | DRL control module, Siren |
| 14 | FOG LIGHT | 15 | Fog light relay |
| DIODE 1 | — | — | |
| 16 | SPARE | 30 | — |
| 17 | SPARE | 20 | — |
| 18 | SPARE | 15 | — |
| 19 | SPARE | 10 | — |
| DIODE 2 | — | — | |
| 20 | BLOWER | 30 | Blower relay |
| 21 | POWER FUSE 2 | 30 | Fuse 4, 20, 24, 25 |
| 22 | POWER AMP | 20 | Audio amp module |
| 23 | SUNROOF | 15 | Data link connector, Sunroof relay, Home link connector |
| 24 | TAIL LIGHT | 20 | Tail light relay |
| 25 | POWER FUSE 1 | 30 | Fuse 1, 7, 17, 18, 19 |
| 26 | ECU | 10 | ETS control module, ECM, E/TCM, Generator |
| 27 | REAR DEFOGGER | 30 | Rear window defogger relay |
| CONDENSER | 20 | A/C fan relay #1 | |
| POWER WINDOW | 40 | Power window relay, IMS controls | |
| IGNITION1/2 | 30/30 | Ignition switch | |
| ABS 1/2 | 30/30 | ABS controls | |
| RADIATOR | 30 | Radiator fan relay |
Instrument panel fuse box
| Description | Ampere rating [A] | Protected components |
| P/SEAT | 25 | Power seat |
| S/HTR | 20 | Seat warmer |
| EPS | 10 | EPS controls |
| ETS | 15 | ETS relay |
| H/LP | 10 | (HID) Head lights, DRL controls, AQS sensor |
| A/CON SW | 10 | Blower & A/C controls |
| HAZARD | 10 | Turn & Hazard controls |
| SPARE | 15 | — |
| CRUISE | 10 | Cruise switch, Instrument cluster |
| IMS | 10 | Head light leveling switch, Rain sensor, IMS controls |
| WIPER | 15 | Rain sensor relay, Wiper & Washer controls |
| ETACS | 10 | Home link connector, Left (Right) vanity lights, Sunroof, Blower & A/C controls, Electronic chrome mirror |
| SPARE | 10 | — |
| AUDIO | 10 | Audio |
| C/LIGHTER | 20 | Front (Rear) cigarette lighter, Accessory socket |
| MIRROR | 10 | IMS controls, Driver door module, Rheostat |
| SPARE | 15 | — |
| RR FOG | 10 | Rear for light relay |
| STOP LP | 15 | Stop lights, Left (Right) personal lights, Left (Right) rear door lights |
| ROOM LP | 10 | Door warning & Ignition key illumination, Courtesy lights |
| A/BAG IND | 10 | Instrument cluster |
| A/BAG | 15 | SRS controls |
| B/UP | 10 | Automatic transaxle controls, Back-up light switch, Vehicle speed sensor |
| T/LID | 20 | Fuel filler door & Trunk lid opener, Driver (Assister) door module |
| D/CLOCK | 10 | Multipurpose check connector, Audio, lmmobiilizer controls, Trip computers, Digital clock, Blower & A/C controls, Instrument cluster |
| RH TAIL | 10 | Left (Right) inside lights, (HID) Head lights, Fog light relay, Right HID turn signal light, Right rear combination light |
| SPARE | 10 | Stop light failure relay |
| CLUSTER | 10 | Immobilizer controls, TCS switch, Trip computers, Instrument cluster |
| T/SIG | 10 | ETACM, Hazard switch, Auto light sensor |
| RR HTD IND | 10 | Antenna, Blower & A/C controls, Left (Right) outside mirror motor & Folding motor |
| LH TAIL | 10 | (HID) Head lights, Front (Rear) cigarette lighters, Left (Right) license lights, Left HID Turn signal light, Left rear combination light |
| START | 10 | Burglar alarm relay, Transaxle range switch, Start relay, ETS controls |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.